- If you skip_python2 you don't need mock.
- We don't need to break Python 2.7
- Add remove_mock.patch to remove dependency on the external mock
package (gh#urllib3/urllib3#2108).
- Fixed the testsuite and updated dependencies
- update to 1.26.2:
* Fixed an issue where ``wrap_socket`` and ``CERT_REQUIRED`` wouldn't
be imported properly on Python 2.7.8 and earlier (Pull #2052)
* Fixed an issue where two ``User-Agent`` headers would be sent if a
``User-Agent`` header key is passed as ``bytes`` (Pull #2047)
* Added support for HTTPS proxies contacting HTTPS servers (Pull #1923, Pull #1806)
* Deprecated negotiating TLSv1 and TLSv1.1 by default. Users that
still wish to use TLS earlier than 1.2 without a deprecation warning
should opt-in explicitly by setting ``ssl_version=ssl.PROTOCOL_TLSv1_1`` (Pull #2002)
**Starting in urllib3 v2.0: Connections that receive a ``DeprecationWarning`` will fail**
* Deprecated ``Retry`` options ``Retry.DEFAULT_METHOD_WHITELIST``, ``Retry.DEFAULT_REDIRECT_HEADERS_BLACKLIST``
and ``Retry(method_whitelist=...)`` in favor of ``Retry.DEFAULT_ALLOWED_METHODS``,
``Retry.DEFAULT_REMOVE_HEADERS_ON_REDIRECT``, and ``Retry(allowed_methods=...)``
(Pull #2000) **Starting in urllib3 v2.0: Deprecated options will be removed**
* Added default ``User-Agent`` header to every request (Pull #1750)
* Added ``urllib3.util.SKIP_HEADER`` for skipping ``User-Agent``, ``Accept-Encoding``,
and ``Host`` headers from being automatically emitted with requests (Pull #2018)
* Collapse ``transfer-encoding: chunked`` request data and framing into
the same ``socket.send()`` call (Pull #1906)
* Send ``http/1.1`` ALPN identifier with every TLS handshake by default (Pull #1894)
* Properly terminate SecureTransport connections when CA verification fails (Pull #1977)
* Don't emit an ``SNIMissingWarning`` when passing ``server_hostname=None``
to SecureTransport (Pull #1903)
* Disabled requesting TLSv1.2 session tickets as they weren't being used by urllib3 (Pull #1970)
* Suppress ``BrokenPipeError`` when writing request body after the server
has closed the socket (Pull #1524)
* Wrap ``ssl.SSLError`` that can be raised from reading a socket (e.g. "bad MAC")
into an ``urllib3.exceptions.SSLError`` (Pull #1939)
* Fix retry backoff time parsed from ``Retry-After`` header when given
in the HTTP date format. The HTTP date was parsed as the local timezone
rather than accounting for the timezone in the HTTP date (typically
UTC) (Pull #1932, Pull #1935, Pull #1938, Pull #1949)